/*
 * Copyright (c) 2014-2022 Stream.io Inc. All rights reserved.
 *
 * Licensed under the Stream License;
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    https://github.com/GetStream/stream-chat-android/blob/main/LICENSE
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package io.getstream.chat.android.ui.feature.messages.list.adapter.viewholder.decorator

/**
 * A provider for the list of [Decorator]s that will be used to decorate the message list items.
 */
public interface DecoratorProvider {
    /**
     * The list of [Decorator]s that will be used to decorate the message list items.
     */
    public val decorators: List<Decorator>
}

/**
 * Combines two [DecoratorProvider]s into a single one.
 */
public operator fun DecoratorProvider.plus(
    other: DecoratorProvider,
): DecoratorProvider = object : DecoratorProvider {
    override val decorators: List<Decorator> by lazy {
        this@plus.decorators + other.decorators
    }
}
